CAJ | 학술논문

论述了临涣选煤厂现行采用的煤泥重介工艺流程。通过对入选原煤-0.5 mm粒级筛分产率及灰分的分析，指出在对各粒级在分选时应注意的问题；通过分析SMC350煤泥重介旋流器单机检测的数据，表明煤泥重介旋流器对0.5~0.075 mm粒级具有较好的分选效率，降低了-0.075 mm粒级在溢流中的灰分，减少了进入浮选系统的高灰细泥含量。但也对0.5~0.25 mm粒级物料进行了重复分选。且使一部分合格产品进入了中煤系统，未能进入浮选系统进行有效分选，降低了浮选精煤产率。
논술료림환선매엄현행채용적매니중개공예류정。통과대입선원매-0.5 mm립급사분산솔급회분적분석，지출재대각립급재분선시응주의적문제；통과분석SMC350매니중개선류기단궤검측적수거，표명매니중개선류기대0.5~0.075 mm립급구유교호적분선효솔，강저료-0.075 mm립급재일류중적회분，감소료진입부선계통적고회세니함량。단야대0.5~0.25 mm립급물료진행료중복분선。차사일부분합격산품진입료중매계통，미능진입부선계통진행유효분선，강저료부선정매산솔。
Coal slime separated by dense medium process flow now used by Linhuan coal preparation plant is expounded in detail. Through analyzing of the screening production rate and ash content of-0.5 mm graded of the feed coal, pointing out problems should be paid attention to in separation process of each particle size;to analyze the data detected from SMC350 slime dense medium cyclone standalone, showing that the coal slime dense medium cyclone has good separation efficiency to particle size ranges 0.5~0.075 mm, reducing the ash contend of the-0.075 mm graded in overflow and the high ash content of fine clay in floatation system.Repeat sorting is conducted to particle size ranges 0.5~0.25 mm. Part of the qualified products also failed to enter the effective separate system, but enter the middings system, which reduces the cleaned coal yield.